package Demo;

public class Demo09 {
    public static void main(String[] args){
        String s1 = "hello java";
        String s2 = "hello java";

        if (s1.equals(s2)){
            String news1 = s1.replace(" ","");
            System.out.println(news1);
            String newseRes=news1.replace("java","word");
            System.out.println(newseRes);
        }

    }
}
